package java201521123069;

import java.util.Scanner;

public class Test1 {
    public static void main(String[] args) {
        Scanner in = new Scanner(System.in);
        while (in.hasNextInt()) {
            int a = in.nextInt();
            int b = in.nextInt();
            if(Math.abs(a)<=1000&&Math.abs(b)<=1000)
            {
               System.out.println(a + b);
            }
            else 
            	System.out.println("a<=1000");
        }
    }
}